E110 Navien. 3” up to 150’ (including schedule 40 pvc). I have cleaned out the intake filter ask an expert home improvement.
To fix the navien error code, e110 ensures nothing obstructs or blocks the exhaust pipe and that the exhaust. Specializes in navien condensing tankless water heater installation, maintenance, and repair. Navien error code e110 means there is an exhaust blockage.